Excellent Water Quality
| Compound | Level | EPA MCL | Health Guideline | Status |
|---|---|---|---|---|
| PFHxS | 8.0 ppt | 10 ppt | 10 ppt | Below limit |
| PFOS | 7.3 ppt | 4 ppt | 4 ppt | Exceeded |
Water Quality Summary
Tap water quality in Delhi, California (95315) receives an overall grade of A (Excellent) with a score of 87 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 6 points above the California state average of 81. Compared to the national average (75), this area performs significantly better. The area is served by Delhi Cwd, a groundwater system providing water to approximately 7,784 people. Notably, 1 PFAS compound exceeds EPA limits — a significant concern given the persistent nature of these chemicals.
A score of 87/100 means the water supply in Delhi, CA meets or exceeds all EPA standards with minimal issues. Contaminant levels are well within safe limits, and the water system has maintained a strong compliance record. While no water supply is guaranteed perfect at the tap due to household plumbing, this is among the best-scoring areas in the country.
Common Questions
Based on EPA data, tap water in Delhi, California receives a grade of A (Excellent) with a score of 87/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.
ZIP code 95315 is served by 1 water system using groundwater sources, providing water to approximately 7,784 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.
No lead data is currently available for ZIP code 95315. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.
Yes — 2 PFAS compounds were detected in water serving Delhi, California, and 1 exceeds EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.
Water systems serving Delhi, California have received 1 violation in the last 5 years. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.
Based on detected contaminants (PFAS), residents in Delhi, California should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.